Improvement in railway-car axle-boxes



2 Sheets-Sheet 1.

' G. P. LYNOH Car Axle-Box.

No. 108,277 Patented Oct. 1l, 1870.

2 Sheets'Sheet 2. G. F. LYNCH.

Car Axle B0X. No. 108,277. -1 mented 001. 11, 1870 Fzg. 4.

Invenlor.-

N. PEI'ERS. Plwlpmnugmphur, wanhngmn, D. C.

mit.

GEORGE F. LYNCH, OF MILWAUKEE, WISCONSIN.

Letters Patent No. 108,277, dated October 11, 1870.

IMPROVEMENT- IN RAILWAY-CAR` AXLE-BOXES.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom. 'it may concern:

Be it known that I, GEORGE F. Lvs'on, ot' Milwaukee, in the county of Milwaukee and State of Wisconsin, have 'invented certain Improvements in Railroad-car Axle-Boxes, Sie., of which the following is a specification, reference being had to the accompanying drawing.

My invention relates to cai-axle boxes and their pedestals, and consists in certain improvements in their construction and arrangement, as hereinafter explained.

In the drawing Figure lis a longitudinal vertical section, ou the line :z5-x of fig. 2.

Figure 2 is a cross-section on the line 1j-y of lig, l.

Figure 3 is a side viewof a part detached;

Figure 4 is an end view of the box and pedestal together; and

Figure 5 is a cross-section ot' a part on line of iig. 4. y

In constructing my device', I make a metallic case, A, of any size desired, and, in its upper or bearingsurface, insert a steel or hardened metallic plate, K, as clearly shown in figs. l and 2, and in its inner end an annular head orwasher, F, small enough to turn treely therein, on the pintle'ot' a set-screw, H, which 'enters the center of the outer end of the ease A, for

that purpose, as shown in ig. 1.

This head or washer F has a conical hole or bearing, c, for the end of the set-screw H, and on its opposite side a collar, d, for a purpose hereinafter explained.

I then make two concentric ring-heads, E, with an equal number of annular holes in the opposite faces of each, the completed circumferences ot' which would ext-end a little beyond the outer and inner edges of the rings, the holes themselves extending inward only a short distance from the faces, and having, in the center of their bottoms, a smaller hole, and between these ring-heads, thus constructed, I mount or place a series of rollers, C, all as clearly shown in figs. 1, 2, and 3. The ring-heads E and rollers C, thus arranged, I place within the case A, as shown in iigs.l and 2. These ring-heads E are made of the proper size, to allow the inner one to fit over and turn about the collar d, when necessary, and also to t smoothly and'bear against its shoulders, as shown in iig. 1, and also to allow the rollers to ll the cross-section ot' the interior of the case, as shown in both figs'. 1 and 2.

Against the outer end or side ot' the outer ringhead place another ring, G, so as to come within the mouth of the case; and, then, against this a'plate,

M, with an annular hole a little larger than the one/in v the ring G, and with an annular socket on its exterior side, in which I place a leather packing, b, and then cover the whole with another plate, a, having an annular of thc same size as that in the plate M, and bolt or screw the plates a' and M fast to the end of the case, as shown in iig. 1.

That portion of the arm of the' axle B that extends within the case A, beyond the plate M, I turn down, and tit snugly thereon a hardened metallic sleeve, I), for a bearing-surface for the rollers C, and have shoulder c, which bears against the outer face of the ring G, the inner end of the arm bearing against the face ot' the collar of' the washer F, all as clearly shown in fig. l.

In the ripper' side of the' case is an opening .for supplying lubricating materia-l, which openin g is closed by a screw, I, as shown in said fig. 1.

In a car-axle box constructed in this way, it will be seen that the washer F, ring-heads E, with their rollers C, and the ring G, are all Aheld securely together by means of the screw H, andthat it they should at any time, by wear or by any other means, run too loosely, they can at once be adjusted desired by the same device. Should the lining K become worn, it can be removed and a new one sub stit-uted in its place, and the leather packing b be# tween the plates a and M, which serves to keep out the dust and all foreign matter, can also be removed whenever necessary, and so with the sleeve D on the end of the axle, that can be removed and another substituted in its place, when desired.

In practical operation, the washer F, ring-heads E, with their rollers 0and the ring G, all turn with the axle, unless they get a litt-le loose, from constant wear, or from some sudden jar, and thus, it will be seen that there will be but little friction in the operation of the box.

In connection' wit-h my box, thus constructed, I make a pedestal, N, with the opposite interior faces of its sides It perfectly smooth, as shown in fig. 5, and 011 the face of the sides 4R, looking toward the car, and about on a line with the axle, I make an au- `nular projection, g, and provide it with a loosely-tit- `ting cap O, and in this annular projection g I insert a rubber spring, P, thick enough to. hold the top ot' the cap a little distance away from the top of the projection g, and then bolt the cap 0 and rubber I? fast to the side N with bolt j, as clearly shown in iig. 5.

When the axle-box, provided. with the ears L, is. arranged to work in a pedestal, N, thus constructed, it will be seen that it will be free to move vertically and laterally at the same time, as it is not connected to the pedestal. Its lateral motion is limited by the rubber springs P, which serve to break the force of any sudden onwiiqlent movement toward the pedestal, and in th' l""way protect both from injury. It is obvious that, instead of the lips I on the sides of the axle b ox,astirrup maybe used. havl. The removable steel or hardened metallic lining- K, in combination with a railroad-'ear axle-box, as

herein shown and described, and for the purpose setl forth. 2. In combination with a set-screw, H, or its equivaient, the head or Washer-plate ,F, when-provided with collard and shoulders, as herein shown and described, for the purpose of bearing against the ringhead E and axle B, as set forth.

3. In combination with a pedestal and axle-box,

arranged, as herein described, to move independent of each other, the rubber springs P, whether attached to the pedestal or to the axle-box, as and for the purpose set forth.

4. Thecombinat-iou of the pedestal N with a car- -axle box-case, provided with flanges L, a spring andl friction-plate, whenV constructed and` arranged sub- I stantially as herein described, and fbr the purpose set forth.

`A car-axlebox, consisting of the case A, with lining-plate K, set-screw H, plates aand M, with the intervening leather packing b, washer Fring G, ringheads'E, and rollers C, al1 constructed and arranged to operatev suhstantiallylas described.

`G. F. LYNCH.

Witnesses: l

H. B. MUNN, PHIL. T. DODGE. 

